Answer in brief
CVE-2023-53851 records a High severity (CVSS 8.4) vulnerability in drm/msm/dp: Drop aux devices together with DP controller. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=2b57f726611e294dc4297dd48eb8c98ef1938e82 <e09ed06938807cb113cddd0708ed74bd8cdaff33 || >=2b57f726611e294dc4297dd48eb8c98ef1938e82 <2fde37445807e6e6d7981402d0bf1be0e5d81291 || >=2b57f726611e294dc4297dd48eb8c98ef1938e82 <a7bfb2ad2184a1fba78be35209b6019aa8cc8d4d || 8768663188e4169333f66583e4d2432e65c421df || >=6.0.7 <6.1 | e09ed06938807cb113cddd0708ed74bd8cdaff33, 2fde37445807e6e6d7981402d0bf1be0e5d81291, a7bfb2ad2184a1fba78be35209b6019aa8cc8d4d, 6.1 |
| Linux/Linuxgeneric | 6.1 | Not reported |
Published upstream
Dec 9, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: Drop aux devices together with DP controller Using devres to depopulate the aux bus made sure that upon a probe deferral the EDP panel device would be destroyed and recreated upon next attempt. But the struct device which the devres is tied to is the DPUs (drm_dev->dev), which may be happen after the DP controller is torn down. Indications of this can be seen in the commonly seen EDID-hexdump full of zeros in the log, or the occasional/rare KASAN fault where the panel's attempt to read the EDID information causes a use after free on DP resources. It's tempting to move the devres to the DP controller's struct device, but the resources used by the device(s) on the aux bus are explicitly torn down in the error path. The KASAN-reported use-after-free also remains, as the DP aux "module" explicitly frees its devres-allocated memory in this code path. As such, explicitly depopulate the aux bus in the error path, and in the component unbind path, to avoid these issues. Patchwork: https://patchwork.freedesktop.org/patch/542163/
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-53851 records a High severity (CVSS 8.4) vulnerability in drm/msm/dp: Drop aux devices together with DP controller. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=2b57f726611e294dc4297dd48eb8c98ef1938e82 <e09ed06938807cb113cddd0708ed74bd8cdaff33 || >=2b57f726611e294dc4297dd48eb8c98ef1938e82 <2fde37445807e6e6d7981402d0bf1be0e5d81291 || >=2b57f726611e294dc4297dd48eb8c98ef1938e82 <a7bfb2ad2184a1fba78be35209b6019aa8cc8d4d || 8768663188e4169333f66583e4d2432e65c421df || >=6.0.7 <6.1 | e09ed06938807cb113cddd0708ed74bd8cdaff33, 2fde37445807e6e6d7981402d0bf1be0e5d81291, a7bfb2ad2184a1fba78be35209b6019aa8cc8d4d, 6.1 |
| Linux/Linuxgeneric | 6.1 | Not reported |
Published upstream
Dec 9, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: Drop aux devices together with DP controller Using devres to depopulate the aux bus made sure that upon a probe deferral the EDP panel device would be destroyed and recreated upon next attempt. But the struct device which the devres is tied to is the DPUs (drm_dev->dev), which may be happen after the DP controller is torn down. Indications of this can be seen in the commonly seen EDID-hexdump full of zeros in the log, or the occasional/rare KASAN fault where the panel's attempt to read the EDID information causes a use after free on DP resources. It's tempting to move the devres to the DP controller's struct device, but the resources used by the device(s) on the aux bus are explicitly torn down in the error path. The KASAN-reported use-after-free also remains, as the DP aux "module" explicitly frees its devres-allocated memory in this code path. As such, explicitly depopulate the aux bus in the error path, and in the component unbind path, to avoid these issues. Patchwork: https://patchwork.freedesktop.org/patch/542163/
Quoted source text, attributed separately from HOL analysis.